holtcn



'4 sheets-sheet 1 INVEHTOR Humm.

ATTORNEY sept. 11, 192s.

G. E. HOLTCN l v PIsToN AND' QONNEQTING non TESTING A ND ALIGNI'NGMACHINE Filed June 14, 1926 sept. 11, 192s. 1,684,321V

G. E. HOLTON PISTON AND CONNECTING ROD TESTING AND ALIGNING MACHINEFiled June 14, 192e 4 sheets-sheet 2 INVENTOR Maf Sept. 1l, 1928.1,684,321 G. E. HoLToN PIsTo'z AND GONNECTING non TESTING AND ALIGNINGncu ATTORNEY .Sept` 11, 1928.

G. Ar:. HoLToN PISTON AND CONNECTING ROD TESTING AND ALIGNING CHINEFiled June 14, 1926 4 Sheets-Sheet 4 IHVENTOR mdw 544cm BY Mf- ATTORNEYPatented Sept. 11, 1928.

GEORGE'E. HOLTON, OF JACKSON, MICHIGAN, ASSIGNOR TO HINCKLEY-MYERS COM-PANY, OF JACKSON, MICHIGAN,

A CORPORATION OF MICHIGAN.

PISTON` ANI) CONNECTING ROD TESTING AND ALIGNING MACHINE.

Application filed June 14,

My invention relates to an improved piston and connecting rod testingAand aligning inachine through the employment otwhich it is possible toeasily and quickly test and align the accuracy ot a connecting rod, itsbearings` and the piston pin mounted thereon.

My improved machine is so constructed that the deviation of the iod tromtrue accuracy and alignment'. will be indicated iiistantly andautomatically. My machine is adapted to removably receive connectingrods ot diilerent length, size and diameter ot bearings. It is adaptedto indicate readily and quickly whether the bearings are in alignmentand what and where the variation from true accuracy. It indicates suchvariation upon a dial, the character, location and extent thereof, andupon correction the extent ot the correction and whether complete orpartial.

The connecting rodis adapted to be received by the machine, tested, and.it the test y shows iiiisalignnient or inaccuracy, toV be dropped tothe working position without being removed from the n'iachiiie where itmay be trued up and successive tests then taken toj indicate the extentot the truing operation. y

A meritorious feature ot my iinprevedinachine lies .in the provision ofan arbor adapted to receive the crankshaft' b aring ot a con nectingrrod, in combination with a plurality ol indiridiiially operableindicating devices` adjustable as a unit toward or a Yay'trom said arborto be properly positioned to engage the piston end ot the connectingrod, which iiulicating devices are each angiilarly adjustable withrespect to the axis ol" the arbor and each is provided with ineansauto-An'iatically operable to register the extent ot such angular adjustment.Each indicating device is adapted to engage a part ot the crankshaft toindicate the alignment ot the axis ot the piston pin bearing ot the rodwith the axis of the crankshaft bearing ot the rod. An added ad vantageconsists in the provision ot' such a machine wherein one indicatingdevice engages the piston pin carried by the rod at opposite sides otits bearing support in the rod, and a second indicating device engagesthe piston pin at an angle With respect to the part thereof engaged bythe irst indicating device. n

(')tlier important advantages of my improved machine will more fullyappear troni 1926. Y Serial N0. 115,854.

the tollowing descriptiom appended claims and'accoinpanying drawings, inwhich:

Figure l is a tront elevation. 14 ig. 2 is vertical sectional View takenon line 2-2, Fig. l.

a. l* ig. is a horizontal` sectional View taken on line 25H3, Fig. 1.

li ig. 4 is a horizoiital sectional view-taken on line tnet, lig. 1..

o is a perspective ot one ot the indi eating devices.

u' i YEgg. Si .is a plan ot a portion ot the head. l* r is a plan ot thehead cap. Il* b is an end elevation partly in section ot my machine.

My machine is provided with a base l0 which is adapted to be suitablypositioned upon a work bench or wherever it desired. l `have shownperforated lugs 12 through which tastening connections may bepassed tosecure the saine rigidly in place. The

base is shown in plan Fig. le and is providedV with three spaced apartupright bearings M adapted to removably i receive an arbor 16 which hasone end 18 Aformed to provide a hand grip portion. This arbor adapted toreceive the bearing at oiieend ot the connecting rod which is indicatedin dotted line and in assembly as 20. The crankshaft bearing is hereshown as mounted upon the arbor and suitable bushings ot' different sizemay be tarnished to mount bearings otditl'ei-eiit diaineter upon thearbor. The opposite end oli the connecting rodcarries a piston pin alsoshown in dotted outline as 22, and in certain ot tlieviews theconnecting rod 20provideifl with the piston piii is litted with a piston(Fig. l). f

'the base is provided with upright guides or standari; 2G, tour beinghere shown, and having a plate 28 at the top to hold them in place. Aslidable head is mounted upon two ot' these guide standards 2G. Thishead is indicated in assembly as 80. It is slidable onthe standards tobe moved toward and away from the arbor 1G and supported in ad- `iiistedpositions with respect thereto through the employment oit thumb screws32. The head is adjustable 4as is stated to accoinniodate connectingrods of different length.

This head carries indicating devices Which contact the free end ot theconnecting rod at determined places to indicate the accuracy otalignment thereof.

The head has a body portion 34. provided with guide apertures 3G adaptedto be received over the guides 26 to support the head thereon forslidable movement. A dial plate 38 is also provided upon the body. Thisbody carries thumb screws 32. An indicating device denoted as a unit bythe numeral 40 (Fig. is pivotally `supported foiwmovement in ahorizontal plane upon this head a pivot pin 42. This indicating devicehas a pair of wings 44 which are perforated to be mounted upon the pin42, as shown in`Fig. 2, and when so mounted is adapted'to swing in a'horizontal plane. It has an uprightportion 46 which forms a dial. It hastwo spaced apart downwardly extending parts 48 which are adapted toContact opposite ends of the piston pin 22 carried by the connectingrod. i It has a vforwardly extending shelf 50 which carries a pointer 52that registers upon the diall 38 ofthe body, the angular' adj ustment ofthe indicating device necessary to bring it into contact with both endsof the piston pin 22. i The indicating ydevice so mounted that when theportions 48 are parallel to the vertical axial plane of the arbor 16 thepointer 52will indicate such fact upon the center line ofthe dial 38, asshown in Fig.

AA second indicating device is provided which is pivotally mounted uponthe first inJ dicating device by a. pivot pin 54 (F 1 and 2).v Thesecond indicating device has spaced apart portions 56 adapted to bear atopposite ends of the piston pinon both sides of its -f bearing in theconnecting rod at an angle to the bearing therca'gai-nst of the parts 48of the device 40. This indicating device carries a pointer 58 whichrextends upwardly to travel across the dial 46 to indicate any verticaldeviation of the two ends of the piston pin from true alignment with thebearing which is mounted upon the arbor 1G. It willbe seen that thepointer 58 would indicate any bend in the connecting rod which wouldproduce a deviation from true accuracy, and the pointer l52 wouldindicate any twist in the connecting` rod which would produce deviationfrom the true accuracy.

A. cap (50 is provided with seats over the body Maud hasl portions 62which fit freely over tl'ieguide standards 26. This cap has a transversebearing 64 (Fig. 3) through which extends a tubulin.' shaft 66, whichshaft car ries at one end an end piece 68 within which is pivotallymounted a face plate 70, which4 face plate is supported within the capupon a iivot pin 72,-upon whicliipivot pin is also mounted a pointer 7 4the free end of which travels over a dial 7G.

rEhe `tubular shaft is rotatably supported within its bearing in the cap60, and the end piece 68 is secured to the tubula shaft by a pin-78 to1".C t atey therewith. The face plate 70 pivoted upon the pin T 2 withinthe end piece 68 has an angular adjustable movement rela tive to suchtubular shaft irrespective of the position to which the shaft may have4been rotated, and this angular adjustable inovement is indicatedV bythe pointer 7 4 traveling over the dial 7G.

The face lplate 7G is" grooved as Vshown in' Tfhen it is desired to trueup theconnecting rod, the crankshaft end of the rod is mounted upon thearbor '1eV between the two bearings V14 which are alignment with thehead 30;

the head is adjusted to the required Vheight and secured in place. bytheset screws 32; theI pin 22 is brought into contact with the poriioi'ls 48 of the indicating device which swivcled upon the pivot pin 42and the portie f 56 of the indicating device `which is su v.eled uponthe pivot p in 54.

lf the piston pin 22 is accuratelyaligned v-h the bearing mounted uponthe" arbor 1G and connecting rod, the pointers 52 and 58 will registerin themanner shown in Figs. 1 and 3. If 'there risa twist or bend in theconnectA ing rod the these pointers will be actuated by the angu# laradpistinent of the indicating devices that carry the pointers which isnecessary to bring Such indicating devices into engagement with thepiston pin 22.

It is not necessary to remove theconnecting rod to true up the same butit may be dropped to the lowered position shown in F ig.v 2 and trued upand Va new reading taken to indi`` cate whether or not such truingoperation has been. complete. Successive truing operations andreadings-may be taken untilthe connect` against the grooved face plate70.1 With the piston held against the V-shaped face plate 70 it can betilted upon the piston pinto its extreme positions and the pointer 74will indicate any inisalignn'ient thereof. f

My machine is provided with gauges which tl crearono bends or twists inthe twist will be indicated by thel pointer 52 and the bend by thepointer 58, as

ico

lli

check offset in the connect-ing` rod itself. The

connecting rod is placed on the arbor between the bearings 14 lastreferred to offset the head and gauge member 79 pivotally carried by abearing 8O and held in adjusted posit-ion by i a thumb screw 82 isdropped' against the end ofthe cranlcshai'i bearing that is mounted uponthe arbor 16. An adjustable` gauge` 84 is then-positioned by means of aset screw lIU necting rod. Leaving these two gauges 88 and7 8 in thepositions to which the;7 have been adjusted, the connecting rod may now'be removed from the arbor and reversed in its position thereon, and itwill be seen whether or not opposite ends of the bearings contacttheganges or whether there 1s an offset in the rod.

It will be noted that my machine is adapted to provide-for a Widevariety of tests and measurements which will take care of conipletelytesting up the true character and accurate alignment of a connecting rodand pistonmounted thereon and these measurements are indicatedinstantaneously and automatically, and the extent. of variation islikewise indicated so that correction thereof can be readilyaccomplished and the accuracy oi such correction readily measured todetermine whether or not it is complete.

W'hat I claim is:

1. In a connecting rod testing and aligning machine, a support for thebearing at one end ot' the rod a pair of indicating devices, meanssupporting said indicating devices in operative position with respect tosaid support, said indicating devices adapted to individually contactthe Wrist pin' of: a rod mounted upon saidsupport, each indicatingdevice being angularly adjustable upon said supporting `means withrespect towthe axis of said support and with respect to the otherdevice.

2. In a machine Yfor testing and aligning a. connecting rod having abearing at each end and a pin fitted in one` of said bearings, a frame,a support on the 'frame for the bearing at one end of the rod, aplurality of indicating devices7 means mounting said indicating devicesupon the frame for adjustment as a unit toward and away from saidsupport, each of said devices being individually ad` justable angularlyon said mounting means with respect to the axis of said support and aregistering member associated with each device adapted to register" theangular adjustment ot' said device with respect to the axis of saidsupport.

In a connecting rod testing and aligning machine, a frame, a mainsupport mounted i upon the frame upon which the bearing at one end ofthe connecting rod is adapted to be removably pivotally mounted, thebearing at the opposite end of the rod being provided with a pin carriedthereby, a plurality of indicating devices mounted upon the frame, eachdevice being angularly adjustable with respect to the'axis of saidsupport, and an indicating member associated with each device toregister the angular adjustment of the device with respect to the axisof the support.

4. In a machine for testing and aligning a connecting rod having abearing at each end and a pin mounted 1n one bearing, a frame, an

arbor carried by the frame, a plurality of iiidicating devices mountedupon the frame, each device being angularly adjustable with respect tothe other and with respect to the axis or' the arbor, and an indicatorcoupled with each device adapted to register the angular adjustment ofthe device with respect to the axis of the arbor.

In a machine for testing and aligning a connecting rod having a bearingat each end and a pin mounted in one bearing thereof, a frame, an arborcarried by the frame upon which the bearing at one end of the connectingrod is adapted to be mounted to pivotally support the rod thereon, anindicating device pivotally supported upon the traine for swingingmovement in a horizontal plane and having a vertical face adapted tocontact said pin, a second indicating device pivotally supported uponthe trame for swinging movenient in a vertical plane and having ahorizontal fare adapted to contact said pin, and an indicator for eachdevice adapted to register the swinging movement thereof.

6. A connecting rod testing and aligning machine having a main supportupon which the bearing at one end ot' the connecting rod is adapted tobe mounted to pivot the rod thereabout, the bearing at the opposite endot said rod being provided with a pin mounted` therein, in combinationwith an indicating device angularly adjustable with respect to the axisof said main support and having spaced apart faces adapted to contactsaid pin at opposite ends of its bearing, and a second indicating deviceangularly adjustable with respect to the axis of said main supporthaving spaced apart faces adapted to contact said pin at opposite endsof its bearing, said devices being movably supported i'or adjustmenttoward or away from said main support and provided with means forindicating their angular adjustment with respect to the axis of saidmain support.

7. A connecting rod testing and aligning machine having, an arboradapted to receive the bearing at one end of the rod to support the rodto pivot thercabout in combination with, a head and means on the machinesupporting the head for movable yadjustment toward and away from saidarbor, and a plurality of indicating devices mounted thereon andangularly adjustable with respect to the axis of the arbor, to bebrought into contact with the free end of the rod.

8. In a machine for testing and aligning a connecting rod having a crankshaft bearing at one vend and a piston pin at the opposite end, a frame,an arbor thereon extending Vhorizontally and adapted to receive thecrank shaft bearing of the rod to support the rod, a standard on theframe perpendicular to leo inv

Vto receive the crank shaft bei the liorizontalplane oft-lie arbor, ahead Supported upon sja-id'standard to be adjustably a ing a `Contactenriace adapted to be brought into engagement with a portion or theSurface et thenin carried b ithe rod said indicatinc.

devices being no euiiported that said respective contact surfacesengage.-.relatively angrilaily arran portioneo't eaidpin, and each ofsaid devicesprovided vvitli means operableto automatically indicate theangular adjustmentor'ftlie device with re )ect to the axis of the arborneceeeary to bring the Contact Suraceot said device into engagement.with the cori-esponding` Surface of 'the pin.;

9. in a machine 'for testing and aligning a conneeting; rod having); :icrank elialit bearingr at one end and a pieton pin carried in bearingzit/the opposite end, .the combination with an :ibor entendino`horizontally and adapted Y 'ing of the rod to support the rod, oi a sandard perpendicular to the horizontalplane ol the arbor, a. headSupported'iipon Said standard to be adjustably positioned toward andaway i'rom said arbor, and-a plurality oi indicating' deviceerarried bysaid bead, eachind icating de- 'ice ad] ,ible with respect to the axle.oi the arbor and having,` a surface adapted to con tact a yiortion ofthe surface-oit the pin car.- ried by the rod inoiintediipon the arbor,Said devices so eiinportcdthat said. respective snrfacea 4engayreiativeiy'angiilarly arranged portions oi angular adjustment of thedevice With respect to the axis ot the arbor.

1G. A machine 'for renting and aligning av conrecting` rod having;`arerank Shaft bearing at one end and a pieton pin carried in a bear.-.inoat the opposite end, including an arbor extending horizontally andadapted to `receive .the crank alia'l't bearing` or 'the rod to supportAthe rod, in combination .ivith'a pair of spaced upright guidesperpendicular lo the axis of the horizontal plane ot thearbor, and ahead elidably supported rupon seid guides for adjnetment vtoward or away:trein said arbor, and a pair ot indicating devices carried byqsaicheadindividually'angulariy adjiistableivith reapect to the axis of the arborand with respect to each other to be` brought into Contact withrelatively angularly arranged portioneoi the pin' carried by theconnecting rod, each device being` provided ivith a partadapted toregieterthe angular adpie'tnient of said device with respect to the axisof the arbor. f

11. A connecting rod testing` and aligning machine having` an arbor,adapted to receive the bearing at one end of the iod to Support the rodto pivot thereaboiitf in combination said pin and each device providedrvwith ineane` for automatically indicatingthe said head for angularfadjustment Withre .epect to the axis oi' the arbor, each Vdeviceadapted to Contact the pin carried by the bearinggat the tree end of therod andeach provi d ed with means. for register-ingv itsi aneular arbor.

l2. In va connectingrod testing and aligningmachineJ the combinationwith .anarbm 'the `crankahaft end of lthe rod,1tlie bearing at theopposite end thi-ireot being` provided with a pin extendingtherethrough, oi' a head and means Supporting the head for guidedadjustable movement toward and away *troni Saidl arbor, and, anindicatingl devicepivotally Supported upon saidlicad for angularmovement. in a vertical plane and .having 'lacee aiglapted to engage.the pin'atopposite ends of its bearing, and a. second indicating;`device pivotaily eupportedupon said bead ior angular nio-vement` '.i aho "'Zontal plane andhaving faces adapted to engage the ypin quatnient,with respect to the axis. or the yadaptedto removably receive thebearing at at opposite endsA of itsl bearing and at an' Vangle to the.plane engagement thereof by eaid brat-mentioned device, each deviceprovided with ali-indicator adapted to regiifiter the dinplacen'ienttliereo't from `a planeparal-A lel to an axial piane oit' the arbor. i

13. In 'a connectingY rod testing and align` ing' machine, thecombinationfivith an arbor f adapted to removably receive the bearingatthe crankshaft end of the rod, the bearing;

at theopposite end thereof being` provided Wit-h aepin extendingtherethrougl'i, of a head and means supporting the head for' guidedadjustable movement toivard and away from Said arbor, and' anindicating-device siipported` npon said head i'ior angular movement withresi ect to theV axis; of the'arbor, Said device provided vvitli taeeportions adapted to engage the pin at opposite ende of its bearing, anda Second' iilidieating device pivotally sijipported upon the niietdevice for vangular inoifeinent `witlirespect to the aiiisf of thearbor, said device provided With face portieneI adapted to engage thepin at opposite ende of its bearing; and angnlarly Wit-h respeelt to theplane of engagement thereoiil by "said, first-mentioned device, and apointer carried by each 'device adapted to register theangularadjiietment thereof w-itlirespect. to

the axis of-tlie arbor necessary to bring said device into engagementwith the pin at bothv endsof its bearing.

14. In a` connecting rod testing and aligning ina-chine, afbase, anarbor thereon adapted to Vreceive the bearing at one end of theconnecting rod to Supprt the rod to pivot there f about, theopposite-end of said rod being provided with a pin. extending throughthe bearing at such end, guides upon the base, a head mounted upon theguides tor adjustment toward or away from the arbor, and a plurality ofindicating devices carried by the head, each device ha ving a portionadapted to engage said pin at opposite ends ot' its bearing whenthe axisot' the pin is parallel to the axis of the arbor, each device beinglindividually angularly adjustable with ree transversely the axisthereo't to adjusted positions with respect thereto, a pair oitindicating devices mounted upon said head and individually angularlyadjustable with respect to the axis of the arbor, each device adapted tocontact the pisto-n pin end oft the rod to register the alignmentthereof with respec to the axis of the arbor.

16. A machine for testing and aligning a connecting rod having a mainbearing at o ne end and a. piston pin bearing at the opposite endprovided with a piston pin.` said machine including: an arbor extendinghorizontally and adapted to receive the main bearing ot the rod topivotally support the rod thereon,

.a guide perpendicular to the axis of the horizontal plane of the arbor`a head slidably Vmounted upon the guide toradjustment to fard and awayfrom. said arbor, a pair ot indicating devices individually pivotally'mounted upon .said head, each of said devices provided with spacedapart Contact faces adapted to engage the pin carried by the rod onopposite sides of its support in the rod, and each device provided withan indicator carried by the head adapted to automatically registertheangular adjustment of the device with respect to the axis of thearbor.

17. A machine for testing and aligning a connecting rod having a mainbearing at one end and a piston pin bearing at the opposite end providedwith a piston pin, said machine including: a base, a pair ot' spacedapart upright guides on the base, a shaft mounted on the basetransversely ot' said guides, said shai't adapted to receive the mainbearing oi a connecting rod to support the rod opposite the intervalbetween the guides, a head slidably mounted between the guides formovement toward or away from said shaft, an indicating device pivotallysupported upon the head for angular adjustn'ient with respect to theaxis ot the arbor, said indicating device adapted to engage the top oithe piston pin carried by the rod, and a registering member on the headassociated with said indicating device to be auton'iatically actuatedthereby to register the angular deviation thereof with respect to theaxis of said arbor.

18. A machine for testing and aligning a connecting rod having a mainbearing at One end and a piston pin bearing at the opposite end providedwith a piston pin, said machine including: a base, a pair of spacedapart upright guides on the base, a, shaft mounted on the basetransversely oit said guides, said shaft adaixited to receive the mainbearing of a connecting rod to support the rod opposite the intervalbetween the guides, a head slidably mounted between the guides formovement toward or awa).1 from said shaft, an indicating devicepivotally supported upon the head for angular adjustment with respect tothe axis of the arbor, said' indicating device adapted to engage the topof the piston pin carried by the rod, a second indicating devicepivotally supported uponthe head for angu lar adjustment with respect tothe axis ol the arbor, said indicating device adapted to engage thepiston. pin at a point sulistantially 90 distant from the point thereofengaged by the first mentioned indicating device and Va pair ofregistering members one coupled with each indicating device to beactuated thereby to automatically register the deflection thereof withrespect to the axis of said arbor. V I

In testimony whereof, I sign this specification.

GEORGE E. IIOLTON.

